Date / Time / Location / F-Rating / Description
--------------------------------------------------------------------------------May.22 / 16:50 / Orono / F0 / A TORNADO WAS OBSERVED LATE TUESDAY AFTERNOON NEAR ORONO, EAST OF OSHAWA. WEATHER RADAR SHOWED A FEW SHOWERS IN THE AREA AT THE TIME ALONG WITH ISOLATED BRIEF THUNDERSTORMS ACCORDING TO THE CANADIAN LIGHTNING DETECTION NETWORK. AS OF 9.30 AM ENVIRONMENT CANADA HAS RECEIVED PHOTO AND VIDEO EVIDENCE CONFIRMING A TORNADO OCCURRED IN A FARMER'S FIELD NEARCLARINGTON CONCESSION ROAD 6 AND ANDREWS ROAD NORTHEAST OF ORONO. NO REPORTS OF DAMAGE HAVE BEEN RECEIVED. HENCE A FUJITA SCALE RATING OF F0 HAS BEEN ASSIGNED, SUGGESTING WIND SPEEDS BETWEEN 60 AND 110 KM/H. 4.50 PM TUESDAY. NORTHEAST OF ORONO. CONFIRMED F0 TORNADO. NO DAMAGE OBSERVEDMay.29 / 16:00 / Bourget / F0 / BETWEEN 4:00 AND 4:15 PM TUESDAY AFTERNOON A FUJITA SCALE ZERO TORNADO (PEAK WINDS TO ABOUT 110 KILOMETRES PER HOUR) OCCURRED IN THE SMALL COMMUNITY OF BOURGET WHICH IS ABOUT 40 KILOMETRES EAST OF OTTAWA. THE TORNADO WAS RELATIVELY SHORT-LIVED
WITH A TOTAL LENGTH OF ABOUT 3 KILOMETRES AND A WIDTH OF ABOUT 50 METRES. SOME MINOR ROOF DAMAGE WAS REPORTED WITH THIS EVENT ALONG
WITH A FEW TREES BEING UPROOTED.Jun.18 / 15:30 / Bread Lake area / F1 / DURING THE AFTERNOON AND EVENING HOURS OF MONDAY, JUNE 18TH, A SERIES OF STRONG THUNDERSTORMS MOVED OVER PORTIONS OF NORTHWESTERN ONTARIO. AERIAL PHOTOS WERE PROVIDED BY A PRIVATE PILOT IN THIS AREA THAT SHOWED TREE DAMAGE CAUSED BY ONE OF THESE STORMS. THESE PHOTOS WERE INSTRUMENTAL IN CONFIRMING THE EVENT AS A TORNADO. AT APPROXIMATELY 3:30 PM EDT (2:30 PM CDT), A SEVERE THUNDERSTORM TRACKED THROUGH THE BREAD LAKE AREA WHICH IS ABOUT 35 KILOMETRES EAST OF SIOUX LOOKOUT. THE AERIAL PHOTOS INDICATED A PATH OF DAMAGE OF DOWNED TREES APPROXIMATELY 1.5 KILOMETRES LONG AND ABOUT 300 METRES WIDE AT ITS WIDEST POINT. THE NATURE OF SOME OF THE TREE DAMAGE WAS CONSISTENT WITH THE TYPE OF DAMAGE THAT WOULD BE CAUSED BY A TORNADO WITH SOME OF THE TREES OVERLAPPING AS THEY WERE UPROOTED. BASED ON THIS INFORMATION, THE TORNADO WAS RATED AS A FUJITA SCALE 1 TORNADO WITH PEAK WINDS BETWEEN 120 AND 170 KM/H .Jul.17 / 13:45 / NE of Summerstown / F0 / OCCURRED AROUND 1:45 PM EDT JUST TO THE NORTHEAST OF SUMMERSTOWN WHICH IS ABOUT 15 KM EAST OF CORNWALL. SOME INTERMITTENT TREE AND CROP DAMAGE WAS NOTED FROM THIS EVENT WITH THE PATH OF DAMAGE BEING ABOUT 30 METRES WIDE AND 2 KM LONG. BASED ON THE DAMAGE NOTED, IT WAS RATED AS A FUJITA SCALE ZERO TORNADO WITH PEAK WINDS TO 110 KM/H.Jul.17 / 15:30 / W of Athens / F1 / OCCURRED JUST WEST OF ATHENS WHICH IS ABOUT 20 KM WEST OF BROCKVILLE. IT OCCURRED AT AROUND 3:30 PM EDT AND LEFT A TRACK OF DAMAGE 300 METRES WIDE AND ABOUT 3 KM LONG. A SHED WAS TOTALLY DESTROYED AS WAS A CINDERBLOCK CHIMNEY. IN ADDITION, A NUMBER OF LARGE HEALTHY TREES WERE UPROOTED AND SOME HEAVY FARM EQUIPMENT WAS MOVED UP TO 15 METRES. BASED ON THIS DAMAGE, THIS TORNADO WAS RATED AS A LOW END FUJITA SCALE ONE EVENT WITH PEAK WINDS TO 140 KM/H.Jul.22 / 20:50 / Embro / F0 / AN ENVIRONMENT CANADA EMPLOYEE WITNESSED A BRIEF, WEAK TORNADO TO THE NORTHWEST OF THE COMMUNITY OF EMBRO IN OXFORD COUNTY AT AROUND 8:50 PM ON SUNDAY, JULY 22ND. THE TORNADO ONLY LASTED FOR A FEW MINUTES IN A FIELD AND DID NO APPRECIABLE DAMAGE. THIS EVENT WAS RATED AS A FUJITA SCALE ZERO TORNADO WITH PEAK WINDS TO 110 KM/H.Aug.11 / ??:?? / near Midland / F0 / unofficial release from EC staff: Weak F0, very short-lived, no appreciable damage track. Confirmed via video and sequence of images.
Sep.8 / 10:00 / Storms Corners / F2 / AT AROUND 10 AM ON SATURDAY, SEPTEMBER 8, A DAMAGING STORM MOVED THROUGH AN AREA NEAR STORMS CORNERS IN EASTERN ONTARIO. STORMS CORNERS IS APPROXIMATELY 10 KILOMETRES TO THE EAST OF NAPANEE. AN ENVIRONMENT CANADA EMPLOYEE PERFORMED AN ON-SITE INVESTIGATION EARLIER TODAY, VIEWING DAMAGE AND TALKING TO EYEWITNESSES. UPON COMPLETION OF THE INVESTIGATION THE EVENT WAS DEEMED TO BE A LOW END FUJITA SCALE 2 TORNADO WITH PEAK WINDS BETWEEN 180 AND 210 KILOMETRES PER HOUR. THE TORNADO OCCURRED IN THE WITHERS ROAD AREA TO THE SOUTHWEST OF STORMS CORNERS. THE DAMAGE INCLUDED AN 8 METRE TRAILER WEIGHING APPROXIMATELY 2500 KILOGRAMS. THE TRAILER WAS CARRIED AND ROLLED OVER 30 METRES BY THE TORNADO AND TOTALLY DESTROYED. A NEW AND WELL-ANCHORED STORAGE SHED WAS DESTROYED TO ITS FOUNDATIONS. THE ROOF FROM THIS SHED WAS CARRIED APPROXIMATELY 150 METRES AND FELL TO THE GROUND ALMOST INTACT. IN AN EXAMPLE OF QUICK THINKING AND APPROPRIATE ACTION, A MAN IN THE SHED AT THE TIME THE TORNADO STRUCK IMMEDIATELY TOOK SHELTER UNDER A HEAVY WORKBENCH AND AVOIDED SERIOUS INJURY AS AS RESULT. DEBRIS FROM A BARN ORIGINALLY AT THE WESTERN END OF THE DAMAGE TRACK WAS CARRIED OVER 4 KILOMETRES. NUMEROUS TREES IN THE AREA WERE UPROOTED OR SEVERELY DAMAGED AND A NUMBER OF LARGE BRANCHES WERE DRIVEN INTO THE GROUND BY THE FORCE OF THE TORNADO. DEBRIS FROM DAMAGED OR DESTROYED BUILDINGS LITTERED SURROUNDING FIELDS. FARM MACHINERY WEIGHING AS MUCH AS 1000 KILOGRAMS WAS CARRIED AS FAR AS 100 METRES. IN TOTAL, THE DAMAGE PATH WAS AROUND 6 KILOMETRES LONG AND ABOUT 150 METRES WIDE, AT ITS WIDEST POINT.Sep.22 / 06:20 / Wellington / F0 / 9TH TORNADO OF THE SEASON. AT AROUND 6:20 AM ON SATURDAY, SEPTEMBER 22, A LINE OF SHOWERS AND THUNDERSTORMS MOVED THROUGH PARTS OF EASTERN ONTARIO. IN THE TOWN OF WELLINGTON, PRINCE EDWARD COUNTY, TWO PROPERTIES BORDERING ON LAKE ONTARIO EXPERIENCED SOME DAMAGE FROM THIS STORM AND AS A RESULT OF TESTIMONIAL EVIDENCE ENVIRONMENT CANADA IS CONFIRMING THE 9TH TORNADO OF THE YEAR IN THE PROVINCE OF ONTARIO. THE TORNADO OCCURRED NEAR THE INTERSECTION OF HIGHWAY 33 AND REGIONAL ROAD 2 IN WELLINGTON AND IS RANKED AS A FUJITA SCALE ZERO TORNADO WITH MAXIMUM WINDSPEEDS UP TO 110 KM/H. THE PATH OF DAMAGE WAS ABOUT 60-70 METRES LONG AND 10-15 METRES WIDE, AND DAMAGE ALONG THE PATH INCLUDED LAWN FURNITURE BEING TOSSED UP TO 50 METRES AWAY, A PICNIC TABLE THROWN ACROSS THE PROPERTY, AND A HEAVY DECK LIFTED AND SHIFTED OFF ITS FOUNDATION. IT IS POSSIBLE THAT THIS TORNADO FORMED OVER LAKE ONTARIO. SUCH WATERSPOUTS ARE TYPICALLY NOT INCLUDED IN ENVIRONMENT CANADA'S ANNUAL TORNADO TALLY UNLESS THEY MOVE ASHORE. THIS IS THE 9TH TORNADO OF THE SEASON IN ONTARIO. ONTARIO NORMALLY HAS 13 TORNADOES EACH YEAR IN A SEASON THAT RUNS FROM LATE APRIL UNTIL EARLY OCTOBER.

AWCN11 CWTO 302104
UPDATED WEATHER SUMMARY FOR ALL OF SOUTHERN ONTARIO AND THE
NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA
AT 4:48 PM EDT WEDNESDAY 30 MAY 2012.
-------------------------------------------------------------
==WEATHER EVENT DISCUSSION==
SECOND TORNADO OF THE SEASON IN ONTARIO ON TUESDAY.
A SERIES OF STRONG THUNDERSTORMS MOVED THROUGH EASTERN ONTARIO ON
TUESDAY AFTERNOON. ENVIRONMENT CANADA RECEIVED A NUMBER OF REPORTS OF
POWER OUTAGES, TREE DAMAGE AND SOME STRUCTURAL DAMAGE FROM THESE
STORMS. AFTER COMPLETING A NUMBER OF STORM SURVEYS, THE SECOND
TORNADO OF THE SEASON HAS BEEN ADDED TO OUR 2012 TALLY. BETWEEN 4:00
AND 4:15 PM TUESDAY AFTERNOON A FUJITA SCALE ZERO TORNADO (PEAK WINDS
TO ABOUT 110 KILOMETRES PER HOUR) OCCURRED IN THE SMALL COMMUNITY OF
BOURGET WHICH IS ABOUT 40 KILOMETRES EAST OF OTTAWA. THIS IS THE
WEAKEST TYPE OF TORNADO ON THE FUJITA SCALE WHICH GOES FROM F-ZERO
(WEAKEST) TO F5 (STRONGEST). THE TORNADO WAS RELATIVELY SHORT-LIVED
WITH A TOTAL LENGTH OF ABOUT 3 KILOMETRES AND A WIDTH OF ABOUT 50
METRES. SOME MINOR ROOF DAMAGE WAS REPORTED WITH THIS EVENT ALONG
WITH A FEW TREES BEING UPROOTED.
EARLIER IN THE AFTERNOON, AT 3:45 PM ON TUESDAY, ANOTHER SEVERE
THUNDERSTORM PRODUCED DAMAGING WINDS IN THE DORNIE AREA NEAR
ALEXANDRIA. THE WINDS WERE ESTIMATED TO BE UP TO AROUND 110
KILOMETRES PER HOUR AND FLATTENED AN OLDER BARN AS WELL AS CAUSING
SOME TREE DAMAGE AND POWER OUTAGES.
ANOTHER INVESTIGATION WAS CONDUCTED IN THE MERRICKVILLE AND
KEMPTVILLE AREA ABOUT 40 KILOMETRES NORTH OF BROCKVILLE. SIGNIFICANT
THUNDERSTORMS MOVED THROUGH THIS AREA BETWEEN 3:00 AND 3:15 PM ON
TUESDAY. SPORADIC TREE DAMAGE WAS NOTED IN THE AREA WITH MOST OF THE
DOWNED TREES FACING THE EAST. A MORE NOTABLE AREA OF DAMAGE WAS SEEN
ABOUT 2 KILOMETRES NORTH OF MERRICKVILLE WITH A NUMBER OF TREES
KNOCKED OVER. NO SIGNIFICANT STRUCTURAL DAMAGE WAS NOTED IN THIS
AREA. THIS EVENT WAS ALSO LINKED TO DAMAGING WINDS WITH PEAK GUSTS TO
ABOUT 110 KILOMETRES PER HOUR.
ONTARIO HAS AN AVERAGE OF 13 TORNADOES EACH YEAR WITH THE SEASON
RUNNING FROM LATE APRIL UNTIL EARLY OCTOBER.
END/OSPC

673
AWCN11 CWTO 291709
WEATHER SUMMARY FOR ALL OF SOUTHERN ONTARIO AND THE
NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA
AT 1:02 PM EDT FRIDAY 29 JUNE 2012.
THIRD TORNADO OF THE SEASON IN ONTARIO CONFIRMED.
-------------------------------------------------------------
==WEATHER EVENT DISCUSSION==
DURING THE AFTERNOON AND EVENING HOURS OF MONDAY, JUNE 18TH, A
SERIES OF STRONG THUNDERSTORMS MOVED OVER PORTIONS OF NORTHWESTERN
ONTARIO. AERIAL PHOTOS WERE PROVIDED BY A PRIVATE PILOT IN THIS AREA
THAT SHOWED TREE DAMAGE CAUSED BY ONE OF THESE STORMS. THESE PHOTOS
WERE INSTRUMENTAL IN CONFIRMING THE EVENT AS A TORNADO. AT
APPROXIMATELY 3:30 PM EDT (2:30 PM CDT), A SEVERE THUNDERSTORM
TRACKED THROUGH THE BREAD LAKE AREA WHICH IS ABOUT 35 KILOMETRES EAST
OF SIOUX LOOKOUT. THE AERIAL PHOTOS INDICATED A PATH OF DAMAGE OF
DOWNED TREES APPROXIMATELY 1.5 KILOMETRES LONG AND ABOUT 300 METRES
WIDE AT ITS WIDEST POINT. THE NATURE OF SOME OF THE TREE DAMAGE WAS
CONSISTENT WITH THE TYPE OF DAMAGE THAT WOULD BE CAUSED BY A TORNADO
WITH SOME OF THE TREES OVERLAPPING AS THEY WERE UPROOTED. BASED ON
THIS INFORMATION, THE TORNADO WAS RATED AS A FUJITA SCALE 1 TORNADO
WITH PEAK WINDS BETWEEN 120 AND 170 KM/H. THE FUJITA SCALE IS USED TO
RATE THE INTENSITY OF DAMAGING WIND EVENTS AND TORNADOES AND GOES
FROM ZERO (THE WEAKEST) TO 5 (THE STRONGEST). ENVIRONMENT CANADA IS
CONTINUING TO INVESTIGATE THIS AREA FOR OTHER POSSIBLE TORNADOES FROM
THIS DAY AND WILL UPDATE THIS STATEMENT IF NEW INFORMATION BECOMES
AVAILABLE.
ONTARIO HAS, ON AVERAGE, 13 TORNADOES A YEAR DURING A SEASON WHICH
RUNS FROM LATE APRIL UNTIL EARLY OCTOBER.
THIS WEATHER SUMMARY CONTAINS PRELIMINARY INFORMATION
AND MAY NOT CONSTITUTE AN OFFICIAL OR FINAL REPORT.
END/OSPC